In order to improve pronunciation, learners may
need to build
up unused muscles in their mouths and build the habit of making
sounds correctly. Tongue twisters in which difficult sounds are
repeated or contrasted are the calisthenics of pronunciation
practice.

Directions: Choose the tongue twisters which
practice the
sounds you are working on. Listen, and then repeat them three
to five times daily. Start saying them slowly and as your
pronunciation improves, say them more quickly.

Betty Botter bought some butter, but she said
"This butterís
bitter.
"If I put it in my batter, it will make my batter bitter."
So, she bought some better butter, better than the bitter butter.
When she put it in her batter, the butter made her batter better.